Abstract
Abstract After ending topdressing with magnesium fertilisers on a field trial on a magnesium-deficient yellow-brown pumice soil, residual effects of six of the fertilisers were compared with effects found from continued annual applications of kieserite. Compared with the regularly topdressed kieserite, all treatments showed a decline in dry matter yields, concentrations of magnesium in the herbage, and magnesium uptakes. Residual effects were smaller from serpentine superphosphate and magnesium phosphate than from dolomite treatments. Over a 6-year period, the percentage of applied magnesium recovered in herbage and soil ranged from 29 to 61 percent, suggesting high losses by leaching from the added magnesium.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
